Question

这道题怎么简算，一定要简算啊啊，学霸快来

Answer 1

 

Answer 2

二0.124.25+0.125+0.125X2.75
=0.125X（4.25+1+2.72)
=0.125X8
=1

Answer 3

12,5%是0,125,把2,75和4,25相加x0,125

Answer 4

可以用乘法分配律

追答

=0.125×（4.25+1+2.75）
=0.125×8
=1

Answer 5

望采纳。

Answer 6